25680925 has 12 divisors (see below), whose sum is σ = 32249920. Its totient is φ = 20283120.

The previous prime is 25680911. The next prime is 25680937. The reversal of 25680925 is 52908652.

It is a happy number.

It is not a de Polignac number, because 25680925 - 2¹³ = 25672733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4527 + ... + 8476.

Almost surely, 2^25680925 is an apocalyptic number.

25680925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25680925 is a deficient number, since it is larger than the sum of its proper divisors (6568995).

25680925 is a wasteful number, since it uses less digits than its factorization.

25680925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13092 (or 13087 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 25680925 is about 5067.6350500011. The cubic root of 25680925 is about 295.0327455750.

The spelling of 25680925 in words is "twenty-five million, six hundred eighty thousand, nine hundred twenty-five".